Allow override no-params java-defined methods which have a field with same name.

Fixes #9392

Author: giabao

compiler/src/dotty/tools/dotc/core/Denotations.scala

@@ -977,7 +977,7 @@ object Denotations {
           true
         case MethodNotAMethodMatch =>
           // Java allows defining both a field and a zero-parameter method with the same name
-          !ctx.erasedTypes && !(symbol.is(JavaDefined) && other.symbol.is(JavaDefined))
+          !ctx.erasedTypes && !other.symbol.is(JavaDefined)
         case ParamMatch =>
            // The signatures do not tell us enough to be sure about matching
           !ctx.erasedTypes && info.matches(other.info)